KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use self_or_override method in Playwright Python

Best Python code snippet using playwright-python

documentation_provider.py

Source:documentation_provider.py

...69                        if arg["name"] == "options":70                            for option in arg["type"]["properties"]:71                                if not works_for_python(option):72                                    continue73                                option = self_or_override(option)74                                option_name = to_snake_case(name_or_alias(option))75                                option["name"] = option_name76                                option["required"] = False77                                args[option_name] = option78                        else:79                            arg = self_or_override(arg)80                            arg_name = to_snake_case(name_or_alias(arg))81                            arg["name"] = arg_name82                            args[arg_name] = arg83                    member["args"] = args84            clazz["members"] = members85    def _add_link(self, kind: str, clazz: str, member: str, alias: str) -> None:86        match = re.match(r"(JS|CDP|[A-Z])([^.]+)", clazz)87        if not match:88            raise Exception("Invalid class " + clazz)89        var_name = to_snake_case(f"{match.group(1).lower()}{match.group(2)}")90        new_name = to_snake_case(alias)91        if kind == "event":92            self.links[93                f"[`event: {clazz}.{member}`]"94            ] = f"`{var_name}.on('{new_name}')`"95        elif kind == "property":96            self.links[f"[`property: {clazz}.{member}`]"] = f"`{var_name}.{new_name}`"97        else:98            self.links[f"[`method: {clazz}.{member}`]"] = f"`{var_name}.{new_name}()`"99    def print_entry(100        self,101        class_name: str,102        method_name: str,103        signature: Dict[str, Any] = None,104        is_property: bool = False,105    ) -> None:106        if class_name in ["BindingCall"] or method_name in [107            "pid",108            "_add_event_handler",109            "remove_listener",110        ]:111            return112        original_method_name = method_name113        self.printed_entries.append(f"{class_name}.{method_name}")114        clazz = self.classes[class_name]115        method = clazz["members"].get(method_name)116        if not method and "extends" in clazz:117            superclass = self.classes.get(clazz["extends"])118            if superclass:119                method = superclass["members"].get(method_name)120        fqname = f"{class_name}.{method_name}"121        if not method:122            self.errors.add(f"Method not documented: {fqname}")123            return124        doc_is_property = (125            not method.get("async") and not len(method["args"]) and "type" in method126        )127        if method["name"].startswith("is_") or method["name"].startswith("as_"):128            doc_is_property = False129        if doc_is_property != is_property:130            self.errors.add(f"Method vs property mismatch: {fqname}")131            return132        indent = " " * 8133        print(f'{indent}"""{class_name}.{to_snake_case(original_method_name)}')134        if method.get("comment"):135            print(f"{indent}{self.beautify_method_comment(method['comment'], indent)}")136        signature_no_return = {**signature} if signature else None137        if signature_no_return and "return" in signature_no_return:138            del signature_no_return["return"]139        # Collect a list of all names, flatten options.140        args = method["args"]141        if signature and signature_no_return:142            print("")143            print("        Parameters")144            print("        ----------")145            for [name, value] in signature.items():146                name = to_snake_case(name)147                if name == "return":148                    continue149                original_name = name150                doc_value = args.get(name)151                if name in args:152                    del args[name]153                if not doc_value:154                    self.errors.add(f"Parameter not documented: {fqname}({name}=)")155                else:156                    code_type = self.serialize_python_type(value)157                    print(f"{indent}{to_snake_case(original_name)} : {code_type}")158                    if doc_value.get("comment"):159                        print(160                            f"{indent}    {self.indent_paragraph(self.render_links(doc_value['comment']), f'{indent}    ')}"161                        )162                    self.compare_types(code_type, doc_value, f"{fqname}({name}=)", "in")163        if (164            signature165            and "return" in signature166            and str(signature["return"]) != "<class 'NoneType'>"167        ):168            value = signature["return"]169            doc_value = method170            self.compare_types(value, doc_value, f"{fqname}(return=)", "out")171            print("")172            print("        Returns")173            print("        -------")174            print(f"        {self.serialize_python_type(value)}")175        print(f'{indent}"""')176        for name in args:177            if args[name].get("deprecated"):178                continue179            self.errors.add(180                f"Parameter not implemented: {class_name}.{method_name}({name}=)"181            )182    def indent_paragraph(self, p: str, indent: str) -> str:183        lines = p.split("\n")184        result = [lines[0]]185        for line in lines[1:]:186            result.append(indent + line)187        return "\n".join(result)188    def beautify_method_comment(self, comment: str, indent: str) -> str:189        comment = comment.replace("\\", "\\\\")190        comment = comment.replace('"', '\\"')191        lines = comment.split("\n")192        result = []193        skip_example = False194        last_was_blank = True195        for line in lines:196            if not line.strip():197                last_was_blank = True198                continue199            match = re.match(r"\s*```(.+)", line)200            if match:201                lang = match[1]202                if lang in ["html", "yml", "sh", "py", "python"]:203                    skip_example = False204                elif lang == "python " + ("async" if self.is_async else "sync"):205                    skip_example = False206                    line = "```py"207                else:208                    skip_example = True209            if not skip_example:210                if last_was_blank:211                    last_was_blank = False212                    result.append("")213                result.append(self.render_links(line))214            if skip_example and line.strip() == "```":215                skip_example = False216        return self.indent_paragraph("\n".join(result), indent)217    def render_links(self, comment: str) -> str:218        for [old, new] in self.links.items():219            comment = comment.replace(old, new)220        return comment221    def make_optional(self, text: str) -> str:222        if text.startswith("Union["):223            if text.endswith("NoneType]"):224                return text225            return text[:-1] + ", NoneType]"226        return f"Union[{text}, NoneType]"227    def compare_types(228        self, value: Any, doc_value: Any, fqname: str, direction: str229    ) -> None:230        if "(arg=)" in fqname or "(pageFunction=)" in fqname:231            return232        code_type = self.serialize_python_type(value)233        doc_type = self.serialize_doc_type(doc_value["type"], direction)234        if not doc_value["required"]:235            doc_type = self.make_optional(doc_type)236        if doc_type != code_type:237            self.errors.add(238                f"Parameter type mismatch in {fqname}: documented as {doc_type}, code has {code_type}"239            )240    def serialize_python_type(self, value: Any) -> str:241        str_value = str(value)242        if isinstance(value, list):243            return f"[{', '.join(list(map(lambda a: self.serialize_python_type(a), value)))}]"244        if str_value == "<class 'playwright._impl._types.Error'>":245            return "Error"246        match = re.match(r"^<class '((?:pathlib\.)?\w+)'>$", str_value)247        if match:248            return match.group(1)249        match = re.match(250            r"playwright._impl._event_context_manager.EventContextManagerImpl\[playwright._impl.[^.]+.(.*)\]",251            str_value,252        )253        if match:254            return "EventContextManager[" + match.group(1) + "]"255        match = re.match(r"^<class 'playwright\._impl\.[\w_]+\.([^']+)'>$", str_value)256        if (257            match258            and "_api_structures" not in str_value259            and "_api_types" not in str_value260        ):261            if match.group(1) == "EventContextManagerImpl":262                return "EventContextManager"263            return match.group(1)264        match = re.match(r"^typing\.(\w+)$", str_value)265        if match:266            return match.group(1)267        origin = get_origin(value)268        args = get_args(value)269        hints = None270        try:271            hints = get_type_hints(value)272        except Exception:273            pass274        if hints:275            signature: List[str] = []276            for [name, value] in hints.items():277                signature.append(f"{name}: {self.serialize_python_type(value)}")278            return f"{{{', '.join(signature)}}}"279        if origin == Union:280            args = get_args(value)281            if len(args) == 2 and str(args[1]) == "<class 'NoneType'>":282                return self.make_optional(self.serialize_python_type(args[0]))283            ll = list(map(lambda a: self.serialize_python_type(a), args))284            ll.sort(key=lambda item: "}" if item == "NoneType" else item)285            return f"Union[{', '.join(ll)}]"286        if str(origin) == "<class 'dict'>":287            args = get_args(value)288            return f"Dict[{', '.join(list(map(lambda a: self.serialize_python_type(a), args)))}]"289        if str(origin) == "<class 'list'>":290            args = get_args(value)291            return f"List[{', '.join(list(map(lambda a: self.serialize_python_type(a), args)))}]"292        if str(origin) == "<class 'collections.abc.Callable'>":293            args = get_args(value)294            return f"Callable[{', '.join(list(map(lambda a: self.serialize_python_type(a), args)))}]"295        if str(origin) == "typing.Literal":296            args = get_args(value)297            if len(args) == 1:298                return '"' + self.serialize_python_type(args[0]) + '"'299            body = ", ".join(300                list(map(lambda a: '"' + self.serialize_python_type(a) + '"', args))301            )302            return f"Union[{body}]"303        return str_value304    def serialize_doc_type(self, type: Any, direction: str) -> str:305        result = self.inner_serialize_doc_type(type, direction)306        return result307    def inner_serialize_doc_type(self, type: Any, direction: str) -> str:308        if type["name"] == "Promise":309            type = type["templates"][0]310        if "union" in type:311            ll = [self.serialize_doc_type(t, direction) for t in type["union"]]312            ll.sort(key=lambda item: "}" if item == "NoneType" else item)313            for i in range(len(ll)):314                if ll[i].startswith("Union["):315                    ll[i] = ll[i][6:-1]316            return f"Union[{', '.join(ll)}]"317        type_name = type["name"]318        if type_name == "path":319            if direction == "in":320                return "Union[pathlib.Path, str]"321            else:322                return "pathlib.Path"323        if type_name == "function" and "args" not in type:324            return "Callable"325        if type_name == "function":326            return_type = "Any"327            if type.get("returnType"):328                return_type = self.serialize_doc_type(type["returnType"], direction)329            return f"Callable[[{', '.join(self.serialize_doc_type(t, direction) for t in type['args'])}], {return_type}]"330        if "templates" in type:331            base = type_name332            if type_name == "Array":333                base = "List"334            if type_name == "Object" or type_name == "Map":335                base = "Dict"336            return f"{base}[{', '.join(self.serialize_doc_type(t, direction) for t in type['templates'])}]"337        if type_name == "Object" and "properties" in type:338            items = []339            for p in type["properties"]:340                items.append(341                    (p["name"])342                    + ": "343                    + (344                        self.serialize_doc_type(p["type"], direction)345                        if p["required"]346                        else self.make_optional(347                            self.serialize_doc_type(p["type"], direction)348                        )349                    )350                )351            return f"{{{', '.join(items)}}}"352        if type_name == "boolean":353            return "bool"354        if type_name == "string":355            return "str"356        if type_name == "any" or type_name == "Serializable":357            return "Any"358        if type_name == "Object":359            return "Dict"360        if type_name == "Function":361            return "Callable"362        if type_name == "Buffer":363            return "bytes"364        if type_name == "URL":365            return "str"366        if type_name == "RegExp":367            return "Pattern"368        if type_name == "null":369            return "NoneType"370        if type_name == "EvaluationArgument":371            return "Dict"372        return type["name"]373    def print_remainder(self) -> None:374        for [class_name, clazz] in self.classes.items():375            for [member_name, member] in clazz["members"].items():376                if member.get("deprecated"):377                    continue378                entry = f"{class_name}.{member_name}"379                if entry not in self.printed_entries:380                    self.errors.add(f"Method not implemented: {entry}")381        with open("scripts/expected_api_mismatch.txt") as f:382            for line in f.readlines():383                sline = line.strip()384                if not len(sline) or sline.startswith("#"):385                    continue386                if sline in self.errors:387                    self.errors.remove(sline)388                else:389                    print("No longer there: " + sline, file=stderr)390        if len(self.errors) > 0:391            for error in self.errors:392                print(error, file=stderr)393            exit(1)394def works_for_python(item: Any) -> bool:395    return not item["langs"].get("only") or "python" in item["langs"]["only"]396def name_or_alias(item: Any) -> str:397    alias = (398        item["langs"].get("aliases").get("python")399        if item["langs"].get("aliases")400        else None401    )402    return alias or item["name"]403def self_or_override(item: Any) -> Any:404    override = (405        item["langs"].get("overrides").get("python")406        if item["langs"].get("overrides")407        else None408    )409    return override or item410def apply_type_or_override(member: Any) -> Any:411    if member["langs"].get("types") and member["langs"]["types"].get("python"):...

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.